Penton Owners Group

General Discussion => Penton Talk => Topic started by: Mike Stephenson on January 13, 2013, 09:51:29 PM

Title: Repairing crack in clutch cover?
Post by: Mike Stephenson on January 13, 2013, 09:51:29 PM
I discovered a small hair line crack in the clutch cover on my 76 250.  There has been no leakage at this point.  Barely noticeable from the inside of the cover.  From the outside really all that can be seen a slight dent.

My goal is to simply make sure it does not start leaking.

I saw an old post here suggesting some product other than JB weld to seal it up - but for the life of me, I can't find that post again.  So...what options are out there?  Or do I just put some JB on it inside and out and call it good?  I wonder if some other sort of epoxy might work.

Mike Stephenson
Atlanta, Michigan
Penton Newbie - thanks to Young Ted!
Title: Repairing crack in clutch cover?
Post by: 454MRW on January 13, 2013, 10:05:47 PM
If you could first slightly "V" out the crack with a die grinder, then repair the area with JB Weld, you can then coat the interior with Glyptal and permanently seal it. This has been used sucessfully to repair fairly seriously erroded interior engine cases. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S
1975 Can Am 175 TNT & 77 250 Black Widow
1979 Husqvarna OR390
1976-78 RM & 77-79 PE Suzuki's
1974 CR250M 07 CR125R 79 CR250R
Title: Repairing crack in clutch cover?
Post by: Mike Stephenson on January 13, 2013, 10:13:22 PM
Is this the Glyptal you are referring to (their website list a number of different products).

  http://www.eastwood.com/glyptal-red-brush-on-1-qt.html

Pricey stuff...and i need about 1/100th of a quart!



Mike Stephenson
Atlanta, Michigan
Penton Newbie - thanks to Young Ted!
Title: Repairing crack in clutch cover?
Post by: 454MRW on January 13, 2013, 10:25:58 PM
Yes, that is the good stuff. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S
1975 Can Am 175 TNT & 77 250 Black Widow
1979 Husqvarna OR390
1976-78 RM & 77-79 PE Suzuki's
1974 CR250M 07 CR125R 79 CR250R
Title: Repairing crack in clutch cover?
Post by: tomale on January 14, 2013, 12:41:15 AM
That sounds like my post.  I crashed my bike soon after it was new and repaired it with JB weld, it needed to be some assistance about 10 years ago.  All I can say is that it has worked great for me.

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)
74' 1/2 440 maico
70' 400 maico (project)
72' cr125 Husky (project)
93' RMx 250 suzuki

Title: Repairing crack in clutch cover?
Post by: Mike Stephenson on January 14, 2013, 08:38:59 PM
Thom - thanks.  That's what I was hoping to hear!  While I am sure that Glyptal is a great product, fact is my project's budget has been severely limited by the budget and finance committee (the dear wifey)!

Mike Stephenson
Atlanta, Michigan
Penton Newbie - thanks to Young Ted!
Title: Repairing crack in clutch cover?
Post by: tomale on January 15, 2013, 08:14:24 PM
I feel your pain, I have a square barrel Maico on the back burner because of current cash flow problems. The biggest problem is finding transmission parts.

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)
74' 1/2 440 maico
70' 400 maico (project)
72' cr125 Husky (project)
93' RMx 250 suzuki